NTSB investigations: Beech C35, MT

6 cases on aircraft the registry lists as Beech C35. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19642026

NTSB investigations: Beech C35, MT per year, 1964–2026: 6 cases
1964	1
1966	1
1968	1
1969	1
1987	1
2004	1

Where

Open the map

Latest cases

Query with SQL

SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1 WHERE c."eventStateOrRegion" = 'MT' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1151508')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
  WHERE c.\"eventStateOrRegion\" = 'MT' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1151508'))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'MT' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1151508'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.

NTSB SEA04FA173Accident · 2 fatalField investigationFinal reportBeech C35 · Kalispell, MTThe pilot's improper positioning of the fuel tank selector, which resulted in fuel starvation and a subsequent loss of engine power while maneuvering.Aug 29, 2004 · N63AC · Destroyed NTSB DEN88LA012Accident · Minor injuriesLimited investigationFinal reportBeech C35 · Ekalaka, MTDuring the takeoff roll the pilot encountered an unexpected tailwind. The pilot reported that he tried to abort the takeoff but tall grass and the tailwind did not allow the aircraft to decelerate properly. The aircraft ran through two drainage ditches and…Oct 21, 1987 · N2028D · Destroyed NTSB SEA70D0047Accident · No injuriesClosedBeech C35 · Belgrade, MTJul 20, 1969 · N1939D · Substantial damage NTSB SEA69A0005Accident · 5 fatalClosedBeech C35 · Tarkio, MTJul 14, 1968 · N1968D · Destroyed NTSB SEA66D0293Accident · No injuriesClosedBeech D35 · Miles City, MTMay 1, 1966 · N5842C · Substantial damage NTSB UNK64X0667Accident · 2 fatalClosedBeechcraft C35 · Forsyth, MTFeb 22, 1964 · N1800D · Destroyed